I. I want to do a simple graph from timestamp YEAR-month-day to valuation, not wanting to use spreadsheets. Is there some ASCII tool for it to see it on CLI? There are over 500k lines of data, and I want to see only a sketch of it like in Ascii:

Value
| *
| * * *
| * * * *
|* *
|----------------------> Timestamp

II. Then, I want to see allocation like in pizza slices:

- - -
-\ -
- \ World -
- Food \ Index -
- / \ -
- /oil \-
- - -

I know how-to-get grappy CSV data in Python but totally newbie in visualization: